D-550 improvisation using a custom patch made with the PG 1000 controller. This is just one single patch, no overdubs. The Roland D-50/D-550 is an amazing synth, it has a certain something that often surprises and delights. You gotta use that PG 1000 to get the best out of it though (or a software editor, i recommend sounddiver for the pc). This sound is available to purchase as part of a sysex bank of 64 sounds. This sound is available to purchase as part of a sysex bank of 64 sounds. See here – https://www.youtube.com/watch?v=j_Zd7zQ8wxk